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Human appropriation of net primary production (HANPP) in seagrass ecosystem: an example from the east coast of Bintan Regency,Kepulauan Riau Province,Indonesia
Authors:Nurul Dhewani Mirah Sjafrie  Luky Adrianto  Ario Damar  Mennofatria Boer
Institution:1.Research Centre for Oceanography,Indonesian Institute of Sciences,North Jakarta,Indonesia;2.Department of Aquatic Resources, Faculty of Fisheries and Marine Science,Bogor Agricultural University,Bogor,Indonesia
Abstract:Seagrass ecosystems have a role as providers of ecosystem services and have been used by fisherman for a long time. Information about the connectivity between seagrass ecosystems and fishermen in Indonesia is limited; therefore, this study aims to measure the relationship between the seagrass ecosystem and fishermen in Bintan Regency, Kepulauan Riau Province, Indonesia. The research was conducted from December 2014 to May 2015 in the villages of Teluk Bakau, Malang Rapat, Berakit and Pengudang. The human appropriation of net primary production (HANPP) approach was used to measure that connectivity. Seagrasses, planktons, fishes, crabs, squids and mollusks were observed during the East and North seasons. The results showed that HANPP in the East season (March–May) is 62.8 Gg (77.1%) and in the North season (December–February) is 68.8 Gg (84.5%) with an efficiency of, respectively, 77.7 and 79.7%. The traditional fishermen are highly dependent on the seagrass ecosystem. They use the seagrass ecosystem in both the East and North seasons. The proper management of seagrass ecosystem is needed in order to make the life of a traditional fisherman in the Bintan Regency sustainable.
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